Do crayfish with eggs need to eat in the hole? Why don't crayfish leave the hole before the eggs hatch?

Faced with the reality that shrimps with eggs do not eat or drink in the cave, farmers can avoid the death of shrimps with eggs due to malnutrition during the hatching process as long as they do the corresponding supporting work. They can also avoid the death of shrimps with eggs due to insufficient bait, unsuitable water temperature, and stress caused by low water temperature when they come out to move around.

Do crayfish with eggs need food in their holes?

When the shrimps with eggs enter the hole to hatch, they will come out to move around if the water temperature is suitable for foraging. However, once the baby shrimps are hatched, they will stay in the shrimp hole without eating or drinking until the baby shrimps are separated from the mother's body. As long as the external water temperature is suitable, they will come out to move around and forage for food.

Why don't crayfish come out of their holes before their eggs hatch?

After the parent shrimps carry the eggs, due to their physiological characteristics, they will enter the hole to hatch the eggs.

The lobster cave is quiet with a small temperature difference, and the temperature is neither too high nor too low. Generally speaking, it is safest for crayfish to hatch eggs in such an environment, just like any other creature, including humans. They are willing to stay in a safe and suitable place, but this is not absolute. If the external water environment is well maintained, the parent shrimp can also lay eggs and hatch in the water plants. Whether in the cave or outside the cave, during the process of hatching eggs, the parent shrimp generally do not eat or drink. This is the physiological instinct of the creature. You can refer to the process of a hen hatching.

However, when the mother shrimp is carrying the pups, in theory, as long as the conditions outside the cave are suitable, the mother shrimp will also go out to look for food. For example, when the water temperature is still okay, if you observe carefully, you will find that some female shrimp will come out to move around in the water, but when the temperature is getting lower and lower, when the water temperature is below 10°, the female shrimp will go into the cave to keep warm and continue to hibernate. Because the female shrimp is a cold-blooded animal, it is very sensitive to external temperature changes.

Do I need to supplement calcium for the crayfish fry in November?

In November, crayfish seedlings need calcium supplementation. We can add some calcium-containing drugs or foods to the soy milk or yogurt used for seedling cultivation. However, the shrimp seedlings are still in the juvenile stage, so it is not recommended to use quicklime powder to supplement calcium, because it is easy to hurt the seedlings. If you use quicklime powder to supplement calcium, use it once a month in low temperature weather, and use drugs for other purposes, but don't use it too frequently.